JDK-7003454 : order constants in constant table by number of references in code
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs20
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2010-11-30
  • Updated: 2012-03-22
  • Resolved: 2012-01-20
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 7 JDK 8 Other
7u4Fixed 8Fixed hs23Fixed
Related Reports
Relates :  
JDK-6961690 - load oops from constant table on SPARC
Description
Order constants in constant table by number of references in code and then set constant table base so that offsets to these frequently used constants fit into simm13.
Comments
EVALUATION http://hg.openjdk.java.net/lambda/lambda/hotspot/rev/6729bbc1fcd6
22-03-2012
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-emb/hotspot/rev/6729bbc1fcd6
15-12-2011
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/6729bbc1fcd6
16-11-2011
EVALUATION Numbers on a SPARC-T4 (chipid 0, clock 2848 MHz): ============================================================================ logs.baseline Benchmark Samples Mean Stdev Geomean Weight specjbb2005 10 99398.57 296.18 ============================================================================ logs.baseline-rdpc/ Benchmark Samples Mean Stdev %Diff P Significant specjbb2005 10 99807.58 816.16 0.41 0.164 * ============================================================================ logs.7003454 Benchmark Samples Mean Stdev %Diff P Significant specjbb2005 10 99896.30 402.16 0.50 0.006 Yes ============================================================================ logs.7003454-rdpc/ Benchmark Samples Mean Stdev %Diff P Significant specjbb2005 10 99700.92 773.54 0.30 0.272 * ============================================================================
01-08-2011